Churn



(No Model.)

J. W. OTTO.

' GHURN.

No. 605,649. w PatentedJune 14,1898.

WWF nNvf-:NTUR

UNITED STATES PATENT FFTCE,

* JOHN w. OTTO, OF ALTOONA, PENNsYLvANIA.

CHUBN.

SPECIFIGATION forming part of Letters IPatent No. 605,649, dated June 14, 1898. Application filed September 25, 1 897. Serial No. 653,034. (No model.)

To LtZZ vwhom it may concern:

Be itknown that I, JOHN W. OTTO, a citizen of the United States, residing dat Altoona, in the county of Blair and State of Pennsylvania, have invented certain new and useful Improvements in Ohurns; and I do dec-lare the following to be af ull, clear, and eXact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same, reference being had to the accompanying drawings, and to the letters of reference marked thereon, which form a part of this specification.

This invention relates to certain new and useful improvement-s in churns; and it re-v lates more particularly to that class of churns in which two rotating dashers are provided, one of the dashers being adapted to rotate in one direction and ,the other in the'opposite.

The invention has 'for its object the provision of a churn of the character referred to in which a concave and a convex dasher are employed, the concave dasher being provided with spirally-arranged recesses and the other dasher, which has a convex surface, being provided with a series of spirally-arranged wings corresponding in number and relative arrangement with the depressions formed within the concave surface of 'the lower dasher. I

Afurther object of the invention residesin the means employed, whereby the relative positionsof the dashers maybe quickly and easily adjusted.

To these ends and to such others as the invention may pertain the same consists in the novel construction and in the peculiar arrangement, combination, and adaptation of parts, all as more fully'hereinafter described, shown in the accompanying drawings, and then specifically defined vin the appended claim.

The invention is clearly illustrated in the accompanying drawings, which, with the letters of reference marked thereon,jform apart of this specification, likeletters of referencev intlicating the same parts throughout the sevbottom plan views, respectively, of the upper or convex dasher; and Figs. 4 and 5 are top and bottom plan views, respectively, of the lower or concave dasher.

" Reference now being had to the details of the drawings by letter, C is the churn-body,

which may be constructed of any suitable material and of any desired size.

D is a Vertical shaft which is stepped at its lower end within Asuitable bearings, and its upper portion passes through eyes formed in the metallic frame E E. This shaft has k'eyed thereto at its lower end a concave dasher B, which is provided with a series of depressed recesses FF and has external blades or rings B' thereon, and at the upper end the said shaft is provided with a beveled pinion G, which meshes with a beveled gear-wheel H upon the shaft I, to the outer end of which shaft a suitable operating-crank J is attached.

A represents the upper dasher, which is relatively ofthe same diameter as the diameter of the lower dasher B, the said dasher A being, howeve'r, convex in form and having its outer surface provided ,with a series of spirally-arranged wings K, corresponding in size, number, and relative arrangement with the depressions Fin the concave dasher B. The dasher A is keyed to a hollow shaft L, the upper end of which shaft is provided with a beveled pinion M, which meshes with the beveled gear-wheel H. By this construction it will be seen that the rotation of the wheel H will cause theppdasher B, which is carried upon the lower e'nd of the shaft D, to rotate in one direct'ion, while the dasher A, attached to the outer tube L, will be rotated in the opposite direction. The dasherB is adj ustably connected to the lower end of the shaft D by means of a setscrew a., which is passed through a collar b and bears against the surfacelof this shaft, while the dasher A, which is carried by the hollow shaft L, is in like manner adj ustably connected to the shaft by means of a set-screw o, passed through a collar d. It will be seen that by this construc- Vtion'the relative positions of the dashers may be readily varied as occasionmay require.

AThe rapid rotation of the dashersyin opposite directions produces a powerful suction,

. and the oppositely-disposed depressions and wings will serve to effectually break up the butter-cells in the cream. The agitation of IOO the cream thns prodnees results in the making of spimHy-:u'mnged seaiioped recesses F in of bnttei' within :L very short pei'iod of time, its intei'ioi' wali, with i'idg'es between said thns savingagreat amount of time and iabor. seaiiops, and the biades B' about the outei' I'Im'ing thuS desoi'ibed inyinvention, What surface of said dasher B, as shown and de- 15 5 I ciaim to be new, and desii'e to secure by Iietsoribed.

tei's Patent, is- In testimony whei'eof I aiffix niy signature In a ohnrn, the combination With the opei'- in presenoo of two witnesses. ating-shafts and bowl-shapod dasherA, which JOHN V. OTTO. has a series of spii'aliy-ai'ranged soa-lioped 1'0- Witnesses: Io cesses about its outer wali, the dashei' JESSE BEN ICKES,

which is concm'ed and provided with a series D. K. IIOWE. 

